Electrical Design
‑85‑
Figure 3‑22 Topology of CAN communication with the PLC
CAN Communication Connection for Multi-drive Applications
Use the Cat 5e shielded network cables to connect the units in hand‑in‑hand mode,
as shown in the following figure. A maximum of 64 nodes can be connected. To
prevent CAN signals from reflecting, connect a 120 Ω termination resistor at both
ends of the bus.
Figure 3‑23 CAN bus topology
Transmission Distance
The transmission distance of CAN bus is related to the baud rate and communication
cable. The relationship between the maximum transmission distance of CAN bus and
the baud rate is described in the following table.
Table 3–38 Transmission distance and speed
Transmission Distance
(m)
Baud Rate (kbps) Number of Nodes
25 1,000 64
95 500 64
560 100 64
1,000 50 64
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